<template>
  <div class="box">
    <div class="login-bg">
      <div class="login-container">
        <div class="login-header">
          <img class="logo mr10" src="../../assets/img/logo.svg" alt="" />
          <div class="login-title">小淘后台管理系统</div>
        </div>
        <el-form :model="param" :rules="rules" ref="login" size="large">
          <el-form-item prop="username">
            <el-input v-model="param.username" placeholder="用户名">
              <template #prepend>
                <el-icon>
                  <User />
                </el-icon>
              </template>
            </el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input type="password" placeholder="密码" v-model="param.password" @keyup.enter="submitForm(login)">
              <template #prepend>
                <el-icon>
                  <Lock />
                </el-icon>
              </template>
            </el-input>
          </el-form-item>
          <div class="pwd-tips">
            <el-checkbox class="pwd-checkbox" v-model="checked" label="记住密码" />
            <el-link type="primary" @click="$router.push('/reset-pwd')">忘记密码</el-link>
          </div>
          <el-button class="login-btn" type="primary" size="large" @click="submitForm(login)">登录</el-button>
          <p class="login-tips">Tips : 用户名和密码随便填。</p>
          <p class="login-text">
            没有账号？<el-link type="primary" @click="$router.push('/login')">立即注册</el-link>
          </p>
        </el-form>
      </div>
    </div>
  </div>

</template>

<script setup lang="ts">
import { ref, reactive } from 'vue';
import { useTabsStore } from '@/stores/tabs';
import { usePermissStore } from '@/stores/permiss';
import { useRouter } from 'vue-router';
import { ElMessage } from 'element-plus';
import type { FormInstance, FormRules } from 'element-plus';
import { User, Lock } from '@element-plus/icons-vue';

interface LoginInfo {
  username: string;
  password: string;
}

const lgStr = localStorage.getItem('login-param');
const defParam = lgStr ? JSON.parse(lgStr) : null;
const checked = ref(lgStr ? true : false);

const router = useRouter();
const param = reactive<LoginInfo>({
  username: defParam ? defParam.username : '',
  password: defParam ? defParam.password : '',
});

const rules: FormRules = {
  username: [
    {
      required: true,
      message: '请输入用户名',
      trigger: 'blur',
    },
  ],
  password: [{ required: true, message: '请输入密码', trigger: 'blur' }],
};
const permiss = usePermissStore();
const login = ref<FormInstance>();
const submitForm = (formEl: FormInstance | undefined) => {
  if (!formEl) return;
  formEl.validate((valid: boolean) => {
    if (valid) {
      ElMessage.success('登录成功');
      localStorage.setItem('ms_username', param.username);
      const keys = permiss.defaultList[param.username == 'admin' ? 'admin' : 'user'];
      permiss.handleSet(keys);
      localStorage.setItem('ms_keys', JSON.stringify(keys));
      router.push('/');
      if (checked.value) {
        localStorage.setItem('login-param', JSON.stringify(param));
      } else {
        localStorage.removeItem('login-param');
      }
    } else {
      ElMessage.error('登录失败');
    }
  });
};

const tabs = useTabsStore();
tabs.clearTabs();
</script>

<style scoped>
.box {
  height: 100vh;
  width: 100%;
  margin: 0;
  padding: 0;
}

.login-bg {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background: url(@/assets/img/login-bg.jpg) center/cover no-repeat;
  background-size: cover;
}

.login-header {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 40px;
}

.logo {
  width: 35px;
}

.login-title {
  font-size: 22px;
  color: #333;
  font-weight: bold;
}

.login-container {
  width: 450px;
  border-radius: 25px;
  background: #fff;
  padding: 40px 50px 50px;
  box-sizing: border-box;
}

.pwd-tips {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  margin: -10px 0 10px;
  color: #787878;
}

.pwd-checkbox {
  height: auto;
}

.login-btn {
  display: block;
  width: 100%;
}

.login-tips {
  font-size: 12px;
  color: #999;
}

.login-text {
  display: flex;
  align-items: center;
  margin-top: 20px;
  font-size: 14px;
  color: #787878;
}
</style>
